ABC News' Martha Raddatz reflects on the 9/11 attack on the Pentagon

ABC News Radio report on the Sept. 11 attacks: "It is right out of a disaster movie."

A final look at the World Trade Center, just after midnight on Sept. 11, 2001

In a powerful tribute, thousands of drones illuminated lower Manhattan to form the images of the Twin Towers -- one light for each person lost on the day of the September 11th attacks. David Muir shares how the breathtaking drone show came together in collaboration with members of the 9/11 community.

BRICS Delhi: World’s Direct Counter to US Hegemony & Trump | Arnab Explains

Genelle Guzman-McMillan, the last survivor rescued from the World Trade Center rubble after Sept. 11, and her daughter speak with Robin Roberts about their family's experience in the aftermath of the attacks. #sept11 #wtc

9/11 widow calls on Trump to hold Saudi Arabia responsible for role in attacks

Hundreds gather in Shanksville to remember the heroes of Flight 93

9/11 widows reflect 25 years later